--- ksh-openbsd_cvs/history.c	2010-02-23 12:49:16.000000000 +0100
+++ ksh-openbsd_cvs.new/history.c	2010-04-01 21:01:24.133232595 +0200
@@ -17,6 +17,7 @@
 
 #include "sh.h"
 #include <sys/stat.h>
+#include "strlcat.h"
 
 #ifdef HISTORY
 # include <sys/file.h>
